Brake gear mounting



July 9, 1929. A. F. OCONNOR BRAKE GEAR MOUNTING 2 Sheets-Sheet Filed June 6, 1927 July 9, 1929. A. F. OCONNOR BRAKE GEAR MOUNTING Filed June 6, 1927 2 Sheets-Sheet 2 Patented July 9, 1929.

UNITED STATES 1,720,234 PATENT OFFICE.

ARTHUR F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR T0 UNION RAILWAY EQUIP- KENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BRAKE GEAR MOUNTING.

Application filed June 6, 1927. Serial No. 196,892.

This invention. relates to mountings for high power hand brake gears of a type commonly in use at the present time. The object of the invention is to so construct the mounting that it may be reenforced and braced against adjacent portions of the car frame in such a way as to prevent bending ordistortion of the front sill to which the mounting is directly attached, or of the mounting itself when subjected to the torsional strains developed with the setting of the brake.

Further objects and details will appear from a description of the invention in conjunction with the accompanying drawings wherein Figure 1 is a side elevation of the gear mounting and associated parts showing the car end sill in section Fig, 2 is a front elevation of the mounting and associated parts;

Fig. 3 is a top or plan view of the same;

Fig. 4 is a plan view of the lower portion of the mounting and associated gusset plane;

Fig. 5 is a sectional detail taken on line 55 of Fig. 4; and

Fig. 6 is a View showing a modified form of the gusset plate.

The mounting as a whole comprises a main upper portion 10 having an arcuate front wall 11 which is carried around that portion of the mounting which extends forwardly of the frontcross sill 12 which, as shown, is of angular formation, although it might be otherwise formed or constructed.

The upper arcuate portion of the mounting merges into a top plate 13, the rear portion of which, as shown in Fig. 3, projects beneath the car sill to which it is secured by means of rivets 14 which, as shown, are four in numher. The lower edge of the arcuate wall 11 at two points equi-distant from the medial line is downwardly extended to form legs or hangers 15, the lower ends of which merge into a substantially circular base plate 16 provided in its center with a boss 17 through which extends a bore 18 furnishing a mounting for the lower end of a winding drum shaft 19, which at its upper end mounts a spur gear 20.

The extreme upper end of the shaft is of reduced cross section and is mounted within a boss 21 on the under-face of the top plate 13, and it is preferred to have the drum shaft freely entered through the spur gear, so that by drawing the drum shaft downwardly, the

spur gear will be released which will permit a disassembling of the parts. The lower end of the drum shaft passes through the bore 18 and on downwardly through the outer end of a gusset plate 22 which underlies the base plate 16 to which it is secured by rivets 23, 9.1, 25 and 26. The rivets 21 and 26 also serve to connect a lower cross bearing plate 27 which underlies the gusset plate and serves to support the shaft in its elevated position.

The curved upper wall 11, at the front medial position, is carried outwardly to furnish a protuberant housing 28 which furnishes a mounting for the pinion 29 carried to the lower end of a brake wheel shaft 30. The lower end of the pinion is shouldered down and j ournaled through the bottom wall 31 of the housing 28. The inner end of the gusset plate 22 extends laterally toward the longitudinal center of the car and is secured to an adjacent portion of a longitudinal sill, such, for instance, as the draft sill 32 by means of rivets 33.

As shown, the drum shaft 19 occupies a position laterally adjacent to the position occupied by a headed key 34, which constitutes a portion of the coupling structure, which key extends outwardly through a slot or aperture in the web of the sill, and in order to permit access to be had to said key or other adjacent portions of the draft rigging, and to permit withdrawal of said hey, the drum shaft 19 is made removable through the base of the mounting as previously indicated. As shown, the brake chain 36 is secured at its forward end between a pair of cars 37 depending from the web of the spur gear, although the chain might be otherwise secured in any suitable or approved manner.

In use, as the shaft 30 is rotated, and the brake chain tightened upon the drum shaft, a heavy torsional strain will be thrown upon the shaft and the lower portions of the mounting which supports and journals the shaft. Since these portions of the structure necessarily depend to a considerable distance below the point of attachment of the mounting to the front cross sill of the car, it is evident that a severe leverage effect will be developed which, unless resisted, would tend to twist or warp the mountin or cross sill to which the mounting is rivete The gusset plate 22 is provided for the purpose of affording reinforcement against these leverage strains and for supplementing the legs or hangers which, unassisted, might be bent or distorted. The gusset plate being of a heavy and rugged construction, and being secured to a nearby adjacent portion of the car frame structure, that is to say, a draft sill or the like, affords the required reinforcement from a point closely adjacent to the mounting. This eliminates the requirement for using brace plates, beams, or the like, which extend rearwardly beneath the car floor, and which are objectionable in that they tend to complicate the car structure to a considerable extent.

It is obvious that the gusset plate may be plane or flat, as indicated in Fig. 2, or of offset construction,'as indicated in Fig. 6, the configuration being that required to bring the opposite ends of the gusset plates into flatwise register respectively with the sill and gear mounting to which the gusset plate is attached. The structure as a whole is such that the mounting frame may be integrally formed, with the exception of the gusset plate, which latter may be easily stamped from metal plate, so that the entire arrangement of the parts is one which avoids difficulties or complications in manufacture or assembly.

I claim: L

1. A mounting for brake gearing comprising an upper portion consisting of a flat top plate merging along its front portion into a depending circular wall, the wall being extended to afford depending legs merging together into a base plate, a drum shaft journaled between the base plate and the top wall of the mounting, a spur gear carried by the drum shaft, a brake chain associated with the gear and shaft, a hand wheel, shaft and pinion carried by the mounting and in train with the spur gear, and a gusset plate secured to the base plate of the mounting and extending laterally therefrom into position to make attachment with a laterally adjacent portion of the car frame, substantially as described.

2. In combination with a front cross silland a longitudinally extending draft sill of a car, a brake gear mounting comprising a top plate secured below and in flatwise relation to the cross sill and provided around its front edge with a depending wall, said wall being extended downwardly at separated points to provide depending legs or hangers merging at their lower ends into a rearwardly extending base plate, brake chain winding elements carried by the mounting, and a laterally extending gusset plat-e secured at its outer end to the base plate of the mounting and at its inner end to a laterally adjacent a car, a brake gear mounting comprising a top plate secured below and in flatwise relation to the cross sill and provided around its front edge with a depending wall, said wall being extended downwardly at separated points to provide depending legs or hangers merging at their lower ends into a rearwardly extending base plate, a shaft journaled between the upper and base plates of the mounting, a spur gear carried by the shaft at its upper end, a pinion meshing with the spur gear, a hand wheel shaft upon which the pinion is mounted, and a gusset plate having its outer end in underlying relation to and secured to the base plate of the mounting and having its inner end in underlying relation to and secured to the draft sill, substantially as described.

t. In combination with the cross sill and longitudinally extending draft sill of a car, a brake gear mounting comprising an upper plate in flatwise abutment against the lower face of the cross sill and secured thereto, :1 depending curvedly extending front wall extended at separated points to furnish depending legs merging at their lower ends into the flat base plate provided with a draft aperture, a drum shaft having its lower end entered through said aperture and having its upper end journaled into the upper plate, agusset plate having its outer end underlying the base plate of the mounting and provided with an aperture in register with the aperture'in the mounting, a cross plate underlying the gusset plate and the registered apertures and furnishing a thrust bearing for the lower end of the shaft, the gusset plate extending laterally and having its inner end carried beneath and secured to an adjacent portion of the longitudinally extending draft sill, and gearing and connections associated with said shaft, substantially as described.

ARTHUR F. OCONNOR. 

